Hsi-En Ho1, Supinda Bunyavanich2,3. 1. Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1 Gustave L Levy Place Box 1498, New York, NY, 10029, USA. 2. Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1 Gustave L Levy Place Box 1498, New York, NY, 10029, USA. supinda@post.harvard.edu. 3. Icahn Institute for Genomics and Multiscale Biology, Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1 Gustave L Levy Place Box 1498, New York, NY, 10029, USA. supinda@post.harvard.edu.
Abstract
PURPOSE OF REVIEW: Food allergen immunotherapy may benefit from adjunct therapies to enhance safety and efficacy. We review preclinical studies investigating the effects of probiotics and other microbial-based interventions on oral tolerance, describe the human clinical trial evidence thus far for microbial adjuncts, and discuss steps for translating research findings in this area to clinical therapy. RECENT FINDINGS: Murine studies support that microbial-based interventions confer protection against sensitization and may augment treatment efficacy for food allergy. Microbial adjunct therapies can promote regulatory T cells and modulate Th1 vs. Th2 responses. There is a wide array of novel modalities utilizing microbial components. Ongoing efforts are focused on translating preclinical data into potential treatments. Probiotics, prebiotics, and microbial components have all been examined as microbial adjunct therapies in murine models of food allergy. The effects of probiotics appear to be strain-specific. Prebiotics and bacterial components are innovative modalities to modulate oral tolerance. Better characterization of dysbiosis in human cohorts with food allergy, deeper mechanistic understanding of microbial adjunct therapies, safety evaluation, and careful clinical trial design will be crucial for the development of microbial adjuncts for food allergen immunotherapy. Microbial adjunct therapies have the potential to enhance the efficacy, safety, and durability of food allergen immunotherapy.
PURPOSE OF REVIEW: Food allergen immunotherapy may benefit from adjunct therapies to enhance safety and efficacy. We review preclinical studies investigating the effects of probiotics and other microbial-based interventions on oral tolerance, describe the human clinical trial evidence thus far for microbial adjuncts, and discuss steps for translating research findings in this area to clinical therapy. RECENT FINDINGS:Murine studies support that microbial-based interventions confer protection against sensitization and may augment treatment efficacy for food allergy. Microbial adjunct therapies can promote regulatory T cells and modulate Th1 vs. Th2 responses. There is a wide array of novel modalities utilizing microbial components. Ongoing efforts are focused on translating preclinical data into potential treatments. Probiotics, prebiotics, and microbial components have all been examined as microbial adjunct therapies in murine models of food allergy. The effects of probiotics appear to be strain-specific. Prebiotics and bacterial components are innovative modalities to modulate oral tolerance. Better characterization of dysbiosis in human cohorts with food allergy, deeper mechanistic understanding of microbial adjunct therapies, safety evaluation, and careful clinical trial design will be crucial for the development of microbial adjuncts for food allergen immunotherapy. Microbial adjunct therapies have the potential to enhance the efficacy, safety, and durability of food allergen immunotherapy.
Authors: Ziyuan He; Vl Gouri Vadali; Rose L Szabady; Wenming Zhang; Jason M Norman; Bruce Roberts; Robert Tibshirani; Manisha Desai; R Sharon Chinthrajah; Stephen J Galli; Sandra Andorf; Kari C Nadeau Journal: Allergy Date: 2020-08-25 Impact factor: 13.146